chore: fix import for session-desktop

Author: Bilb

types/index.d.ts

@@ -2,5 +2,6 @@
 /// <reference path="./blinding/index.d.ts" />
 /// <reference path="./groups/index.d.ts" />
 /// <reference path="./multi_encrypt/index.d.ts" />
+/// <reference path="./pro/pro.d.ts" />
 /// <reference path="./user/index.d.ts" />
 /// <reference path="./shared.d.ts" />